Dataset for "First-principles estimation of core level shifts for Hf, Ta, W and Re"
Input files for the open source Quantum Espresso code are provided to reproduce the calculations presented in the paper with the following abstract.
A simple first-principles approach is used to estimate the core level shifts observed in X-ray photoelectron spectroscopy for the 4$f$ electrons of Hf, Ta, W and Re; these elements were selected because their 4$f$ levels are relatively shallow in energy. The approach is first tested by modeling the surface core level shifts of low-index surfaces of the four elemental metals, followed by its application to the well-studied material TaSe$_2$ in the commensurate charge density wave phase, where agreement with experimental data is found to be good, showing that this approach can yield insights into modifications of the charge density wave. Finally, unterminated surface core level shifts in the hypothetical MXene Ta$_3$C$_2$ are modeled, and the potential of XPS for the investigation of the surface termination of MXenes is demonstrated.
Cite this dataset as:
Wolverson, D.,
2022.
Dataset for "First-principles estimation of core level shifts for Hf, Ta, W and Re".
Bath: University of Bath Research Data Archive.
Available from: https://doi.org/10.15125/BATH-01109.
Export
Data
PWSCF_input_files.zip
application/zip (5kB)
Creative Commons: Attribution 4.0
Contains example SCF input files for slabs of Hf, Re, Ta and W (with (001) orientation except for W, which is (110) oriented, for reasons explained in the associated publication. These files enable the user to reproduce the Quantum Espresso calculation of the electronic density of states of these materials (the SCF calculations should be followed by NSCF calculations using the same input parameters and then a PROJWFC calculation, as demonstrated in the QE documentation).
Creators
Daniel Wolverson
University of Bath
Contributors
University of Bath
Rights Holder
Documentation
Data collection method:
This dataset contains details necessary to reproduce the density functional theory calculations within the associated publication.
Technical details and requirements:
The input files are intended for use with Quantum Espresso open-source density functional theory code (https://www.quantum-espresso.org/) with pseudopotentials generated by the "atomic" code included with QE and contained in PSlibrary (https://www.materialscloud.org/discover/sssp/plot/efficiency/). Quantum Espresso is described in the following papers: Giannozzi, P., et al., 2009. QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials. Journal of Physics: Condensed Matter, 21(39), 395502. Available from: https://doi.org/10.1088/0953-8984/21/39/395502. Giannozzi, P., et al., 2017. Advanced capabilities for materials modelling with Quantum ESPRESSO. Journal of Physics: Condensed Matter, 29(46), 465901. Available from: https://doi.org/10.1088/1361-648X/aa8f79.
Additional information:
Input files follow the order of the figures in the paper.
Methodology link:
Wolverson, D., Smith, B., Da Como, E., Sayers, C., Wan, G., Pasquali, L., and Cattelan, M., 2022. First-Principles Estimation of Core Level Shifts for Hf, Ta, W, and Re. The Journal of Physical Chemistry C, 126(21), 9135-9142. Available from: https://doi.org/10.1021/acs.jpcc.2c00981.
Funders
Engineering and Physical Sciences Research Council
https://doi.org/10.13039/501100000266
EPSRC Centre for Doctoral Training in Condensed Matter Physics
EP/L015544/1
Publication details
Publication date: 24 May 2022
by: University of Bath
Version: 1
DOI: https://doi.org/10.15125/BATH-01109
URL for this record: https://researchdata.bath.ac.uk/id/eprint/1109
Related papers and books
Wolverson, D., Smith, B., Da Como, E., Sayers, C., Wan, G., Pasquali, L., and Cattelan, M., 2022. First-Principles Estimation of Core Level Shifts for Hf, Ta, W, and Re. The Journal of Physical Chemistry C, 126(21), 9135-9142. Available from: https://doi.org/10.1021/acs.jpcc.2c00981.
Contact information
Please contact the Research Data Service in the first instance for all matters concerning this item.
Contact person: Daniel Wolverson
Faculty of Science
Physics
Research Centres & Institutes
Centre for Nanoscience and Nanotechnology
